run unit tests in ci

.github/workflows/openapi-tests.yaml

@@ -0,0 +1,25 @@
+name: Unit Tests
+"on":
+  pull_request:
+    paths:
+      - src/**
+      - tests/**
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout PR branch
+        uses: actions/checkout@v3
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install Dependencies
+        run: bun install
+
+      - name: Bundle OpenAPI Spec
+        run: bun run build
+
+      - name: Run Unit Tests
+        run: bun run test